Which of the following is considered a method of physical pest control?

The choice of traps as a method of physical pest control is correct because traps utilize physical mechanisms to capture or kill pests, preventing them from causing damage or spreading. This method is non-chemical and can be particularly effective in managing pest populations without employing toxic substances. Various kinds of traps, such as sticky traps, snap traps, and live traps, are designed to target specific pests based on their behavior and movement, offering pest management options that can be both safe and environmentally friendly.

Pesticide application, while a common method for pest control, involves chemicals that can impact non-target organisms and the environment. Soil treatment refers to the application of substances to the soil to impact pest populations, and insect repellent is designed to deter pests rather than directly control them, not fitting the definition of physical control methods. Therefore, traps stand out as a direct physical intervention for managing pest issues.